| Abstract: | The characterization of different types of human papilloma viruses made it possible to study the specific immune responses to purified viral antigens in patients with warts. The specific cell-mediated immunity was investigated by means of a leukocyte migration inhibition factor test in 9 patients with epidermodysplasia verruciformis and 4 patients with regressing plane warts. The results show a significant increase in specific cell-mediated reactivity concomitant with the regression of the warts. |
